p89c538nbb NXP Semiconductors, p89c538nbb Datasheet - Page 29
p89c538nbb
Manufacturer Part Number
p89c538nbb
Description
Cmos Single-chip 8-bit Microcontrollers With Flash Program Memory
Manufacturer
NXP Semiconductors
Datasheet
1.P89C538NBB.pdf
(32 pages)
Philips Semiconductors
Toggle Bit, Data Polling
Toggle bit appears in Q6, when program/erase is operating. DATA
polling appears in Q7 during programming or erase.
1998 Apr 24
80C51 8-bit microcontroller family
16K/64K/512 FLASH
DURING P/E
DURING P
DURING P
V
O0–O5
PP
OE
WE
12V
OE
CE
O7
O7
HIGH–Z
HIGH–Z
HIGH–Z
HIGH–Z
HIGH
DATA
DATA POLLING
Figure 25.
Toggle Bit, Data Polling Timing Waveform
TOGGLE BIT
DATA
29
PROGRAM/ERASE COMPLETE
DATA POLLING
DATA
89C536/89C538
Preliminary specification
DATA
DATA
DATA
SU00880
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